1, the steel prices generally calculated in tons. To see you say the steel is hot dip galvanized or black material.2, hot galvanized general 4500/ tons,3, black wood generally in 3800/ tons.That is 4.5 yuan /kg and 3.8 yuan /kg. Forget it. You say this kind of steel is 2.355kg per meter,

Can consider to increase the insurance factor, the edge of the glass with epoxy resin and solid wall such as granite wall adhesion (which went to the production of glass curtain wall) will not allow the use of styrofoam! Because of adhesive power, shear resistance and so on are poor.

Hot dip galvanized steel can be welded. The main methods of welding are as follows:1. manual arc welding. Remove the welding seam and the nearby zinc coating before welding. The welding rod can choose J421/J422/J423 and E5001/E5003 welding rod according to different requirements;2. gas metal arc welding. CO2 gas shielded welding can be used.3. argon arc welding.4. resistance welding.

Belongs to the type steel, also belongs to the light steel. The question you ask is equivalent to whether apples, grapes, or bananas belong to fruit or food

Q:25-30mm drill pipe steel, to drill a lot, need what equipment

Drill with magnetic base.Magnetic drill is also called magnetic block drill. The magnet drill is to change the electric field at the bottom of the magnetic drill after energizing. The magnetic field is absorbed on the steel structure, and then the magnetic drill motor runs at high speed to drive the drill bit and realize the drilling of the steel structure.

Q:The anti-theft lock in the steel compression spring is what?

The use of stainless steel spring wire suspension spring wire is advanced, high strength, long fatigue life, the effect is good damping characteristics, spring steel wire, the number and distribution of inclusions, so the chemical, high surface quality, decarbonization, microstructure and mechanical performance requirements.

There is a difference in the quality of classification and can be processed into cold and hot dip galvanized pipe, galvanized pipe, galvanized pipe and galvanized belt can not be made, because of its wall thickness is thin, so the price will take the price dip galvanized pipe is much higher than galvanized pipe.